Home / 78,053.10-117,084.90-27,446.08

Finding the Fourth Proportional to 78,053.10, 117,084.90 and 27,446.08

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Solution

The fourth proportional to 78,053.10, 117,084.90 and 27,446.08 is: 41,170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,053.10 : 117,084.90 = 27,446.08 : x
  2. Step 2: Convert to fraction form
    78,053.10/117,084.90 = 27,446.08/x
  3. Step 3: Cross multiply
    78,053.10x = 117,084.90 × 27,446.08
  4. Step 4: Simplify right side
    78,053.10x = 3,213,521,532.19
  5. Step 5: Solve for x
    x = 3,213,521,532.19/78,053.10
  6. Step 6: Final answer
    x = 41,170.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.